Home / 496,318,927.20-744,478,390.80-278,640,693.60

Finding the Fourth Proportional to 496,318,927.20, 744,478,390.80 and 278,640,693.60

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Solution

The fourth proportional to 496,318,927.20, 744,478,390.80 and 278,640,693.60 is: 417,961,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,318,927.20 : 744,478,390.80 = 278,640,693.60 : x
  2. Step 2: Convert to fraction form
    496,318,927.20/744,478,390.80 = 278,640,693.60/x
  3. Step 3: Cross multiply
    496,318,927.20x = 744,478,390.80 × 278,640,693.60
  4. Step 4: Simplify right side
    496,318,927.20x = 207,441,975,182,723,872
  5. Step 5: Solve for x
    x = 207,441,975,182,723,872/496,318,927.20
  6. Step 6: Final answer
    x = 417,961,040.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.